I didn't have any issues with my DDM setup. I bought it in April, so they may have gotten all the bugs figured out
2002 Harley Davidson F150
Intake-C&L elbow-SBTB-L upper/snout-4# Lower-Bassani catted mid-Bassani Cat Back-VB-Diablo tuned-Best time: 13.8 @ 100.7
Soon to be: 6# lower-SCT MAF-Custom Tune